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LG UltraWide monitor (38WK95C) - limited resolution

PostPosted: Nov 10th, '20, 11:34
by vmunich
hello everyone,
I just got a new LG UltraWide monitor (38WK95C).
Recommended resolution is 3840x1600@60Hz (ratio: 2,4), so the screen is large (=wide) and basically replaces two monitors

LG (of course) does not offer much support for Linux users.
Mageia offers many choice when selecting the monitor (when looking in MCC/Hardware, Graphic) and I selected "LG HDR WQHD" as Plug n Play

My graphic card is an Intel® UHD-Grafik 630 (integrated on Mainboard on a desktop Dell Inspiron).

Unfortunately, the graphic card does not offer 3840x1600 and it seems that 1920x1080 is the max it can do (ratio: 1,7). So I get a small picture on my wide screen...
Is there any way I could benefit more from this monitor with Mageia ?
I guess the limitation comes from the graphic card, which, on my sysem, is not easy to replace...
Best,
Vincent

Re: LG UltraWide monitor (38WK95C) - limited resolution

PostPosted: Nov 10th, '20, 12:19
by doktor5000
vmunich wrote:Mageia offers many choice when selecting the monitor (when looking in MCC/Hardware, Graphic) and I selected "LG HDR WQHD" as Plug n Play

Please go there again, and only select Plug&Play itself, not a specific monitor.

And please post the output of
Code: Select all
xrandr -q

Re: LG UltraWide monitor (38WK95C) - limited resolution

PostPosted: Nov 10th, '20, 12:29
by vmunich
Here we go.... Thanks a lot for your help

Code: Select all
[vincent@localhost ~]$ xrandr -q
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected primary (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 880mm x 370mm
   1920x1080     60.00*+  60.00    50.00    59.94 
   1920x1080i    60.00    50.00    59.94 
   1680x1050     59.88 
   1600x900      60.00 
   1280x1024     75.02    60.02 
   1280x800      59.91 
   1152x864      75.00 
   1280x720      60.00    50.00    59.94 
   1024x768      75.03    60.00 
   832x624       74.55 
   800x600       75.00    60.32 
   720x576       50.00 
   720x480       60.00    59.94 
   640x480       75.00    60.00    59.94 
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Re: LG UltraWide monitor (38WK95C) - limited resolution

PostPosted: Nov 10th, '20, 18:22
by doktor5000
You may need to add a custom resolution for that.
Have a look at e.g. https://askubuntu.com/questions/377937/ ... resolution or https://wiki.archlinux.org/index.php/xr ... esolutions